Risks, Limitations, Tru64 unix configuration – HP 6400.8400 Enterprise Virtual Array User Manual

Page 123: Requirements, Risks limitations

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Risks

Single path failure may result in loss of data accessibility and loss of host data that has not
been written to storage.

Controller shutdown results in loss of data accessibility and loss of host data that has not been
written to storage.

NOTE:

For additional risks, see

“Oracle Solaris failure scenarios” (page 132)

.

Limitations

HP P6000 Continuous Access is not supported with single path configurations.

Single path HBA server is not part of a cluster.

Booting from the SAN is not supported.

Figure 35 Oracle Solaris configuration

5 SAN switch 1

1 Network interconnection

6 SAN switch 2

2 Host 1

7 Controller A

3 Host 2

8 Controller B

4 Management server

Tru64 UNIX configuration

Requirements

Switch zoning or controller level SSP must be used to ensure each HBA has exclusive access
to its LUNs.

All nodes with direct connection to a disk must have the same access paths available to them.

Single HBA server can be in the same fabric as servers with multiple HBAs.

In the use of snapshots and snapclones, the source virtual disk and all associated snapshots
and snapclones must be presented to the single host that are zoned with the same controller.

Supported configurations

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